{"id":32803,"date":"2026-11-04T00:41:49","date_gmt":"2026-11-04T00:41:49","guid":{"rendered":"https:\/\/gfevfuse.com\/?post_type=product&p=32803"},"modified":"2026-11-09T11:49:59","modified_gmt":"2026-11-09T11:49:59","slug":"gfevt1000-38r-high-speed-dc-fuse-1000vdc","status":"publish","type":"product","link":"https:\/\/gfevfuse.com\/es\/gfevt1000-38r-high-speed-dc-fuse-1000vdc\/","title":{"rendered":"Fusible de CC de alta velocidad GFEVT1000-38R 1000 V CC 250-400 A tipo aR"},"content":{"rendered":"
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High\u2011Speed DC Fuse GFEVT1000\u201138R Series 1000Vdc 250A\u2011400A aR Type<\/h2>\n

GFEVT1000-38R-Series.-250-400A-1000Vdc-I.R-50kA-High-speed-fuse<\/a><\/p>\n

The GFEVT1000-38R is a high speed dc fuse designed for 1000Vdc battery pack and BESS energy storage systems. This aR rated DC fuse offers 250-400A current range, 50kA breaking capacity and bolt-on M8 mounting for reliable overcurrent and short-circuit protection.\r\n<\/code><\/pre>\n
High\u2011speed DC fuse<\/strong> GFEVT1000\u201138R series is an aR\u2011type semiconductor protection fuse designed for 1000Vdc heavy\u2011duty DC systems. In fact, it delivers outstanding DC breaking performance with a rated breaking capacity up to 50kA. This bolt\u2011mount fuse covers 250A, 275A, 315A, 350A and 400A current grades. Furthermore, it works perfectly for lithium battery pack protection, energy\u2011storage cabinets and new\u2011energy power conversion equipment.<\/p>\n
Compliance note: This fuse complies with IEC 60269.4, UL 248.13 and JASO\u2011D622 standards. Besides, it meets RoHS requirements; you can request REACH declaration upon bulk\u2011order.<\/em><\/p>\n
General Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Product Series<\/strong><\/td>\nGFEVT1000\u201138R High\u2011Speed DC Fuse<\/td>\n<\/tr>\n
Rated DC Voltage<\/strong><\/td>\n1000 Vdc<\/td>\n<\/tr>\n
Rated Current Range<\/strong><\/td>\n250A, 275A, 315A, 350A, 400A<\/td>\n<\/tr>\n
Fuse Class<\/strong><\/td>\naR (Semiconductor protection)<\/td>\n<\/tr>\n
Rated Breaking Capacity<\/strong><\/td>\n50 kA; Time Constant \u22645ms<\/td>\n<\/tr>\n
Recommended Bolt<\/strong><\/td>\nM8<\/td>\n<\/tr>\n
Installation Torque<\/strong><\/td>\n12\u00b11.0 N\u00b7m<\/td>\n<\/tr>\n
Key Overall Dimensions<\/strong><\/td>\nTotal length:132.5\u00b12\u202fmm; Body length:102\u00b11.5\u202fmm; Diameter \u03a637\u00b11\u202fmm<\/td>\n<\/tr>\n
Standards & Compliance<\/strong><\/td>\nIEC 60269.4, UL 248.13, JASO\u2011D622, RoHS compliant<\/td>\n<\/tr>\n
Typical Applications<\/strong><\/td>\nBattery pack, energy\u2011storage system, power converter, new\u2011energy DC circuit<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Electrical Rating Table<\/h2>\n\n\n\n\n\n\n\n\n
Catalog Model<\/strong><\/td>\nRated Current<\/strong><\/td>\nMelting A\u00b2S<\/strong><\/td>\nClearing A\u00b2S<\/strong><\/td>\nWatts Loss@80%<\/strong><\/td>\nWatts Loss@100%<\/strong><\/td>\n<\/tr>\n
GFEVT1000\u2011250A\u201138R<\/td>\n250A<\/td>\n10560<\/td>\n48900<\/td>\n30<\/td>\n49<\/td>\n<\/tr>\n
GFEVT1000\u2011275A\u201138R<\/td>\n275A<\/td>\n12900<\/td>\n60090<\/td>\n34<\/td>\n67<\/td>\n<\/tr>\n
GFEVT1000\u2011315A\u201138R<\/td>\n315A<\/td>\n15600<\/td>\n72600<\/td>\n39<\/td>\n90<\/td>\n<\/tr>\n
GFEVT1000\u2011350A\u201138R<\/td>\n350A<\/td>\n20800<\/td>\n93000<\/td>\n44<\/td>\n105<\/td>\n<\/tr>\n
GFEVT1000\u2011400A\u201138R<\/td>\n400A<\/td>\n38500<\/td>\n130200<\/td>\n55<\/td>\n130<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Note: Test condition:1.12kVdc,51.2kA,T=4.78ms; DC Peak arc voltage:1.49kV. Time\u2011current curve tolerance \u00b115% on current value.<\/em><\/p>\n
Core Product Advantages<\/h2>\n
    \n
  • It targets pure DC\u20111000V applications, and it delivers superior DC short\u2011circuit breaking performance for semiconductor\u2011based power equipment.<\/li>\n
  • Under high\u2011fault\u2011current conditions, it opens up to ten\u2011times faster; therefore, it reliably protects power semiconductors, battery cells and internal wiring.<\/li>\n
  • You can install multiple fuses in parallel within sizing guidelines, so you achieve higher total ampacity for large\u2011scale energy\u2011storage projects.<\/li>\n
  • It shows great resistance to voltage impulse and wide ambient\u2011temperature tolerance. Meanwhile, it withstands high\u2011level mechanical shock and vibration up to 20g acceleration.<\/li>\n
  • Bolt\u2011on M8 lug design brings stable connection; you just follow 12\u00b11.0N\u00b7m torque to get low\u2011resistance contact.<\/li>\n<\/ul>\n
    Application Scenarios<\/h2>\n
      \n
    • Lithium\u2011ion battery pack over\u2011current & short\u2011circuit protection for energy\u2011storage systems<\/li>\n
    • DC side protection for solar\u2011storage converters, bidirectional inverters and power conversion devices<\/li>\n
    • New\u2011energy industrial DC power cabinets and high\u2011voltage off\u2011grid power equipment<\/li>\n
    • Semiconductor device protection for rectifier and DC power supply units<\/li>\n<\/ul>\n
      Important Installation & Operation Guidelines<\/h2>\n
        \n
      1. This is an aR\u2011type high\u2011speed DC fuse. Do not deploy it for AC circuits outside specification scope.<\/li>\n
      2. Use M8 bolts and keep installation torque at 12\u00b11.0N\u00b7m. If you apply insufficient torque, you will trigger over\u2011heating; on the other hand, over\u2011torque may damage ceramic body.<\/li>\n
      3. For high\u2011altitude locations above 2000\u202fm, you need to derate rated current especially inside closed cabinet enclosures.<\/li>\n
      4. You may mount the fuse vertically, horizontally or tilted. Nevertheless, avoid gravity\u2011and\u2011vibration interference for spring\u2011contact\u2011type assembly structures.<\/li>\n
      5. Always cut off full DC power before replacement. You must discard and replace any mechanically\u2011damaged fuse unit.<\/li>\n
      6. Do not swap fuses under load unless your equipment supports load\u2011break switch\u2011type structure.<\/li>\n<\/ol>\n
        Environmental & Custom Information<\/h2>\n
          \n
        • Ambient humidity: Max 50%RH @40\u2103; can reach 90%RH @20\u2103 without heavy condensation.<\/li>\n
        • Altitude reference: Normal operating altitude \u22642000\u202fm; 2000\u20114500\u202fm requires current\u2011derating for closed\u2011box installation.<\/li>\n
        • Documentation: RoHS standard included; you can ask for REACH statement for bulk purchase.<\/li>\n
        • Packing: Standard neutral packing; support custom marking upon large\u2011volume orders.<\/li>\n<\/ul>\n
          Frequently Asked Questions<\/h2>\n
          \n
          \n
          Q1: What voltage and class is GFEVT1000\u201138R fuse?<\/strong><\/p>\n
          A1: GFEVT1000\u201138R runs at 1000Vdc and belongs to aR high\u2011speed semiconductor\u2011protection class. For this reason, it mainly protects DC battery\u2011energy\u2011storage and power\u2011conversion equipment.<\/p>\n<\/div>\n
          \n
          Q2: What is the rated breaking capacity of this high\u2011speed fuse?<\/strong><\/p>\n
          A2: Its rated breaking capacity reaches 50kA with time constant \u22645ms. Moreover, it offers fast\u2011acting clearing performance under severe short\u2011circuit faults.<\/p>\n<\/div>\n
          \n
          Q3: Can I run multiple GFEVT1000\u201138R fuses in parallel?<\/strong><\/p>\n
          A3: Yes. You can apply parallel mounting within official sizing guidelines. However, you need to guarantee balanced current sharing for each individual fuse unit.<\/p>\n<\/div>\n
          \n
          Q4: What bolt torque should I use during installation?<\/strong><\/p>\n
          A4: Please adopt M8 bolt and keep tightening torque to 12\u00b11.0N\u00b7m. Too\u2011loose connections produce heat; meanwhile, excessive torque risks cracking ceramic housing.<\/p>\n<\/div>\n
          \n
          Q5: Do I need to derate current when installing at high altitude?<\/strong><\/p>\n
          A5: If you mount inside closed cabinets above 2000\u202fm altitude, you must derate rated current (2\u20115% per 1000\u202fm). On the contrary, open\u2011air installation generally ignores altitude\u2011related derating impact.<\/p>\n<\/div>\n
          \n
          Q6: Which standards does GFEVT1000\u201138R comply with?<\/strong><\/p>\n
          A6: It meets IEC 60269.4, UL 248.13, JASO\u2011D622 and RoHS rules. In addition, we can provide REACH declaration upon customer request for bulk\u2011order projects.<\/p>\n<\/div>\n<\/div>\n<\/div>\n